Abstract: An auto race monitoring system provides a race track with a ground positioning system which includes at least three transmitters, transmitting signals to be received by at least a pair of receivers in each of the race cars. Those receivers instantaneously determine their position and, accordingly, exact position and attitude of the race car upon the race track. This information, along with data respecting race car parameters such as vehicle speed, engine temperature and oil pressure, are sent by means of a transmitter to a receiver interconnected with a main frame computer which uses such information to replicate each of the vehicles in the race in real time. The replicated information is made available to the internet and the audio/video receivers connected thereto.